The earliest human civilizations appeared between 3,000 and 4,000 years ago; since then, humans as a species have been entirely at peace for approximately 268 years. And as many as 1 billion people may have perished as a direct result of war, according to What Every Person Should Know About...
Astronomers observing star clusters in our galaxy have found evidence that controversially challenges Newton's laws of gravity and could upend our understanding of the universe. The puzzling finding could support a controversial idea that does away entirely with dark matter. The researchers found this evidence by observing open star clusters,...